Đặc điểm hình ảnh điện não đồ ở một số thợ hàn

The weIdel works in stressful conditions with the strong stimulation by light, which will cause brain stimulation. Objective of this study is to investigate the change off EEG waves on the welders. This was designed as the crosssectional study on 57 male welders aged 26-46 years with more than 10 years of experience. The results showed that the change of electroencephalogram (EEG) showing has many variations: there was a decline in a waves index and amplitude, disorder of basic rhythm, 13 spillover and up to 84 percent of welders has EEG variations type III and IV (classified according to Zirmunskaja).